Čerlinskaitė K, Mebazaa A, Cinotti R, et al. - Among patients experiencing acute dyspnoea because of cardiac and non-cardiac reasons, it was inquired if unplanned readmission was related to a greater subsequent risk of death. This study involved 1371 patients from the LEDA (Lithuanian Echocardiography Study of Dyspnoea in Acute Settings) study (derivation cohort) and 1986 patients from the BASEL V (Basics in Acute Shortness of Breath EvaLuation Study) study (validation cohort). Participants were acute dyspnoea patients admitted to the emergency department. An elevated 1 year mortality risk in relation to six month readmission was found in both the derivation cohort and the validation cohort. Findings revealed that among acute heart failure (AHF) and non-AHF patients with acute dyspnoea, there existed a long-lasting detrimental relationship between readmission and death. These cases should be regarded as ‘vulnerable patients’ that need personalized follow-up for an extended duration.